Laws Of Motion Question 5

Question 5 - 2024 (27 Jan Shift 1)

A body of mass $1000 kg$ is moving horizontally with a velocity $6 m / s$. If $200 kg$ extra mass is added, the final velocity (in $m / s$ ) is:

(1) 6

(2) 2

(3) 3

(4) 5

Show Answer

Answer: (4)

Solution:

Momentum will remain conserve

$1000 \times 6=1200 \times v$

$v=5 m / s$